Refrigerator and Freezer Temperature Settings

Core Issue:

  • What temperature should a refrigerator or freezer be set at?
  • Number to set refrigerator or freezer to on the control dial
  • Best temperature to set a wine storage unit to
  • Temperature range in a freezer or refrigerator
  • How to change the temperature setting
  • Recommended temperatures


The temperature range in a Sub-Zero with an electronic control panel is 34° - 45°F (1° - 7°C) degrees in the refrigerator and -5° to 5°F (-20° to -15°C) degrees in the freezer.

Temperature Adjustments

Electronic Control Panels
For Integrated Refrigeration and Integrated Wine Storage models, see Integrated Series Temperature Adjustment. For 400, 600, 700, Built-In, UC Undercounter, and 648PRO Series:

  1. Press the colder or warmer key for the desired section.
  2. For units that have a "zone" feature, select the desired zone and press the colder or warmer key.
    • Unit normally displays actual temperature.
    • When the colder or warmer key is pressed, unit will display the set temperature.
  3. After setting to desired temperature, display will return to actual temperature after 3 seconds.
  4. The temperature change is not immediate. Allow 24 hours for the unit to reach the set temperature. An audible beep occurs during this operation.

Dial Controls
200, 300, and 500 Series models with dial control thermostats use these instructions.

  1. In units with a dial control, set the dial between 4 and 6. 1 is warmest setting and 10 (or 7 on some models) is coldest.
  2. For instructions on adjusting the setting, see:

Refer to the product use and care guide for further information.

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